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Exercise Physiology Research

Current Research

Effect of Step Cadence on Arterial Compliance

Runner with EKGMen and women are needed to participate in research that will study the effect of walking pace on vascular function. Participants must be between 18-30 years old, sedentary or recreationally active, non-smokers without diagnosed cardiovascular or cardiopulmonary disease, not taking hormonal contraceptives, not pregnant, without high blood pressure or blood glucose levels, and not obese. This study involves 3 visits (2-3 hours each visit) to the Exercise & Sport Sciences building at Texas Tech University. Measurements include a medical history questionnaire, blood pressure, blood glucose, body fat, vascular health measurements, daily physical activity, and cardiorespiratory fitness level.  Participants will be given $25 for completion of the study and will also receive results from tests (body fat, blood glucose, and fitness level or VO2max).

Interested men and women should contact Jake Compton at 432-288-3570.  This study is approved by the TTU Human Research Protection Program.

 

Effects of Emotional Exposure on State Anxiety and Physiological Measures of Stress Reactivity After an Acute YogaFit Session

Triar Social ResearchStudy Members: Kembra Albracht, Drs. Gonzales, Del Fernandez, Hart, and McComb

The purpose of this study is to examine the effectiveness of an acute YogaFit session versus an acute period of quiet rest for short-term protection against emotional stimuli in college age women. Psychological effectiveness will be assessed using surface electromyography (SEMG), galvanic skin response (GSR), and heart rate variability (HRV). DEXA will be used to assess body composition and predict cardiovascular fitness levels. Cardiovascular fitness levels, as well as body fat, may be a predictor of stress reactivity.

 

Salutations to the Sun - Surya Namaskar

Research in Mindfulness and Yoga in the Department of HESS: For more information contact Jacalyn McComb.

 

Sex Differences in the Stress Response

Triar Social ResearchThe purpose of the proposed study is to compare the efficacy of the published Trier Social Stress Protocol and the Beilock Stress Protocol. Efficacy will refer to the responsiveness of cortisol and heart rate variability (HRV) to the psychological stressor. In addition to this, differences in gender response will also be measured.

 

 

 

The Women’s Wellness Outreach Program

Women's Wellness Outreach ResearchThe Women’s Wellness Outreach Program is dedicated to helping women cope with stressors in their life through mindfulness based exercise, breathing and muscle relaxation techniques. Biofeedback is used to help women increase awareness of their physical and mental state and ultimately achieve a state of calmness.  Pre-post tests following an intervention period include the health related fitness components, heart rate variability, and EMG measurements of strength and muscle tension. Questionnaires are used to find out their subjective levels of distress.  We are presently working with women who are survivors of breast cancer.

 

Research Facilities

The Exercise Physiology graduate program at Texas Tech University is supplemented by a state-of-the art research facility comprised of multiple research laboratories in the areas of biochemistry, molecular physiology, biofeedback, body composition, cardiorespiratory function, skeletal muscle performance, and vascular function. Each laboratory contains equipment dedicated to research in exercise and sport sciences and used by graduate students in the Department performing a thesis or dissertation.

 

Biochemistry Lab

Biochemistry Lab

The Biochemistry Lab is fully equipped to perform biochemical techniques including: protein assay, kinetic assays and analysis using enzyme-linked immunoassays (ELISA). Featured equipment include centrifuges, dry bath incubator, fume hood, Isotemp incubator, pipettes, pH meter, plate shaker, plate washer,  -80° freezer, refrigerator, and EIA capable plate readers (Spectramax Plus; Beckman DTX 800/880 Multimode Detectors).

Contact Dr. Eunhee Chung for more information.

 

Biofeedback Lab

Biofeedback Lab

This laboratory is dedicated to the use of biofeedback in altering physiological responses to stress.  Featured equipment in this laboratory include biofeedback monitors (Nexus 10 Wireless Bluetooth Biofeedback; Comet XL-Grass-Telefactor polysomnogram; J & J Engineering C2+ 6 & 12 Channel Systems), continuous blood pressure monitor (CNAP 500i), and electromyography.  Surface electromyography from this lab is also used to provide feedback regarding muscle fatigue in order to individualize resistance training programs.

Contact Dr. Jacalyn McComb for more information.

 

Body Composition Lab

Body Composition Lab

The Body Composition Lab is equipped with a dual-energy X-ray absorptiometry (DEXA, GE Lunar Prodigy Primo), skinfold calipers, and bioelectrical impedance machines (Tanita).

Contact Dr. Joaquin Gonzales for more information.

 

Cardiorespiratory Lab

Cardiorespiratory Lab Equipment

The Cardiorespiratory Lab is fully equipped for measuring ventilation and gas exchange responses to exercise. Featured equipment include automated EKG stress testing systems (MedGraphics CardiO2™; Quinton Q Stress and Q4500), radiotelemetry heart rate monitors (Polar), computerized metabolic measurement systems (MedGraphics ULTIMA; Physiodyne Max II; ParvoMedics 2400); EMG equipment (Biopac), Trackmaster treadmill, and cycle ergometers (Lode Excalibur Sport, Corival; Monarch 828E).

Contact Dr. Joaquin Gonzales for more information.

Cardiorespiratory Lab Research

 

Molecular Lab

Cardiorespiratory Lab Equipment

The Molecular Exercise Physiology Laboratory is occupies approximately 775 sq. ft, which has been well equipped for molecular biology and biochemistry experiments. The laboratory is fully equipped for standard molecular biology procedures including NanoDrop 2000 UV-Vis Spectrophotometer (Thermo Scientific), an Applied Biosystems 96-well thermal cycler, and a Bio-Rad CFX touch thermal cycler. A full range of electrophoresis apparatus is available for agarose and acrylamide gel analyses as well as Bio-Rad ChemiDoc MP system for chemiluminescence detection. An Eppendorf refrigerated centrifuge, Thermo Sci refrigerated centrifuge, and microplate spectrophotometer from Beckman and Molecular Devices are also present.  The laboratory has its own water supply (deionized water) and Millipore water, compressed gas mixtures, and vacuum and air outlets.  A -20°C freezer and a Chromatography refrigerator are available, while a-80°C freezer is placed in the biochemistry room.

Contact Dr. Eunhee Chung for more information.

Cardiorespiratory Lab Research

 

Phlebotomy Lab

Phlebotomy Lab

The East and West Phlebotomy Labs were developed as a dedicated space for blood collection in research studies.

Contact Dr. Jacalyn McComb for more information.

 

Vascular Assessment Lab

Vascular Assessment Lab

The Vascular Assessment Lab is designed to measure peripheral vascular function at rest and during exercise in humans. This laboratory features Doppler ultrasound machines (GE Vivid 7; Hokanson MD6), applanation tonometry (SphygmoCor PVx), automated blood pressure monitors (CNAP 500at, Omron BP785), rapid cuff inflation system (Hokanson E20), data acquisition system (PowerLab 8SP), pulse oximeter (Nellcor N-395), and an automated EKG monitor (Schiller AT-10).

Contact Dr. Joaquin Gonzales for more information.

 

Lab Safety Materials

Click here for the required training for anyone working in a BSL II Lab.

Click here to go to the online training. Here are the 3 topics needed to work in a BSL Lab II:

  • Bloodborne Pathogen Exposure Control
  • Radiation Refresher
  • Biological Safety

Click herefor Emergency Procedures related to Bloodbourne Pathogens.

Click here for the TTU Post Exposure Packet.

Click here for the Phlebotomy Handbook.

Click here for the Physiology Phlebotomy Standards for Thesis Students who need to collect Blood Samples. Includes:

      • Educational Requirements
      • Applied Phlebotomy Video Exam
      • Practical Skills for Phlebotomy

Click here for the Procedures for Graduate Students to Obtain a Hepatitis B Shot.